We can change a gas to a liquid by INCREASING the temperature and DECREASING the pressure
It is an ensemble of similar cells
Rutherford, Geiger and Marsden's experiment proved that every atom has a nucleus and that this nucleus is of positive charge and contains the most of the mass of the atom. 0.005% of the volume occupied by the electrons is the volume of the nucleus.
I believe the answer is B. a million or more.
